Last Frost Day

Frost history / Goodman Sanitary Dist, WI

Goodman Sanitary Dist, WI: frost dates by year

Last spring and first fall frost at NOAA station USC00473174, 1960 to 2009, measured from daily minimum temperatures.

Elevation 1,448 ft, 45.621, -88.360. Download the data (JSON) · NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianMay 26Sep 24
EarliestMay 9 (1999)Sep 3 (1974)
LatestJun 24 (1979)Oct 7 (2005)
Trend1.6 days earlier per decade2.6 days later per decade
Years with data3939

At 28°F (hard freeze) the median last spring date is May 10 and the median first fall date is Oct 5.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

Apr 30May 15May 30Jun 14Jun 29196019701980199020001960: May 141961: May 301962: Jun 31963: May 231964: Jun 161965: May 291966: May 291967: May 221968: May 221969: May 261970: May 171971: Jun 91972: Jun 101974: May 261975: May 161976: May 251977: Jun 91978: May 211979: Jun 241980: Jun 101981: May 181982: Jun 61983: May 271984: May 291985: May 291994: Jun 91995: May 191997: May 221998: Jun 61999: May 92000: May 202001: May 122002: May 252003: May 222004: May 282005: May 162006: May 222007: May 212008: May 28

First fall frost (32°F)

Aug 28Sep 12Sep 27Oct 12196019701980199020001960: Sep 301961: Sep 261962: Sep 201963: Sep 131964: Sep 121965: Sep 111966: Sep 251967: Sep 101968: Oct 41969: Sep 181970: Sep 281971: Oct 71972: Sep 221973: Sep 201974: Sep 31975: Sep 91976: Sep 221977: Oct 31978: Sep 281979: Sep 81981: Sep 161982: Sep 221983: Sep 131984: Sep 261985: Sep 111993: Sep 181994: Oct 21995: Sep 81997: Oct 11998: Sep 232000: Sep 242001: Oct 52002: Oct 72003: Sep 292004: Sep 292005: Oct 72006: Oct 52008: Oct 32009: Sep 30

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2009no dataSep 30no dataSep 30
2008May 28Oct 3May 11Oct 3
2007May 21no dataApr 16no data
2006May 22Oct 5May 22Oct 10
2005May 16Oct 7May 12Oct 21
2004May 28Sep 29May 5Oct 5
2003May 22Sep 29May 3Sep 30
2002May 25Oct 7May 21Oct 14
2001May 12Oct 5Apr 19Oct 7
2000May 20Sep 24Apr 22Oct 6
1999May 9no dataApr 24no data
1998Jun 6Sep 23Apr 28Oct 14
1997May 22Oct 1May 17Oct 20
1995May 19Sep 8May 7Sep 22
1994Jun 9Oct 2Jun 4Oct 10
1993no dataSep 18no dataSep 29
1985May 29Sep 11May 2Sep 25
1984May 29Sep 26May 27Sep 27
1983May 27Sep 13May 17Oct 9
1982Jun 6Sep 22May 8Oct 17
1981May 18Sep 16May 18Sep 16
1980Jun 10no dataJun 10no data
1979Jun 24Sep 8May 16Oct 7
1978May 21Sep 28May 2Oct 8
1977Jun 9Oct 3May 10Oct 7
1976May 25Sep 22May 12Sep 22
1975May 16Sep 9Apr 25Sep 25
1974May 26Sep 3May 10Sep 22
1973no dataSep 20no dataSep 20
1972Jun 10Sep 22May 8Oct 9
1971Jun 9Oct 7May 3Oct 12
1970May 17Sep 28May 6Oct 4
1969May 26Sep 18May 25Oct 17
1968May 22Oct 4May 6Oct 5
1967May 22Sep 10May 22Sep 29
1966May 29Sep 25May 10Oct 12
1965May 29Sep 11Apr 28Sep 26
1964Jun 16Sep 12May 14Sep 15
1963May 23Sep 13May 23Oct 30
1962Jun 3Sep 20Apr 20Sep 29
1961May 30Sep 26May 10Sep 29
1960May 14Sep 30May 13Oct 18

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991–2020 frost probabilities.